11 Topic 1: Conclusions to Stray Light analysis No detectable stray light problem at 352nm below 50kmRTM error above 70km probably due to boundary set at 80kmIdeal gas law estimation is helpful but not a replacement for RTM calculationsPAGE 10 OF 20

17 Altitude where slope = 0 as a function of latitude bands305nm300nm310nm315nm

18 TH error as a function of latitude band[300nm, 305nm, 310nm, 315nm]MLS has +300m bias in GPHandVaries by latitude ~200m

19 Topic 2: Conclusions to Altitude Registration Errors Both methods show a similar orbital dependence minima at poles, peak ~20°N, but the peak is larger using the “knee method” ~500m versus ~300m.PAGE 18 OF 20

21 RecommendationKeep normalization altitude at 68 km – no advantage to loweringIncrease RTM boundary from 80 to 100kmBegin study of aerosol using slopes of radiancesWork with Rob Loughman in improving the rxfer codeChange to vector code, fix other problems